package com.gsta.ifishery.netty.server;

import com.gsta.ifishery.netty.handler.AbnormalMonitoringHandler;
import com.gsta.ifishery.netty.handler.ConnectionDetectionHandler;
import com.gsta.ifishery.netty.handler.MessageParsingHandler;

import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.DelimiterBasedFrameDecoder;
import io.netty.handler.codec.Delimiters;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
import io.netty.util.CharsetUtil;

/**
 * 服务端初始化 . <br>
 * 
 * @author hkb
 */
public class NettyServerInitializer extends ChannelInitializer<SocketChannel> {

    /**
     * 共用连接检测handler
     */
    private ConnectionDetectionHandler connectionDetectionHandler = new ConnectionDetectionHandler();

    /**
     * 初始化channel
     */
    @Override
    public void initChannel(SocketChannel ch) throws Exception {
        ChannelPipeline pipeline = ch.pipeline();
        pipeline.addLast(new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()));
        pipeline.addLast(new StringDecoder(CharsetUtil.UTF_8));
        pipeline.addLast(new StringEncoder(CharsetUtil.UTF_8));
        pipeline.addLast(connectionDetectionHandler);
        pipeline.addLast(new MessageParsingHandler());
        pipeline.addLast(new AbnormalMonitoringHandler());
    }

}
